TABLE 4.
Cumulative fractions of response of four dalbavancin dosing regimens against MIC distribution of 801 Staphylococcus aureus clinical isolates causing bone and joint infections in U.S. and European hospitals (14) at the three PK/PD targetsa
Dalbavancin regimen (mg) at day (d) | CFRs of MSSA isolates (n = 534) at: |
CFRs of MRSA isolates (n = 267) at: |
||||
---|---|---|---|---|---|---|
fAUC24h/MIC > 27.1 | fAUC24h/MIC > 53.3 | fAUC24h/MIC > 111.1 | fAUC24h/MIC > 27.1 | fAUC24h/MIC > 53.3 | fAUC24h/MIC > 111.1 | |
1,500 d1 + 1,500 d8 | ||||||
At d21 | 100 | 100 | 99.74 | 100 | 100 | 99.82 |
At d28 | 100 | 99.74 | 97.29 | 100 | 99.82 | 97.14 |
At d35 | 99.77 | 98.17 | 90.51 | 99.86 | 98.12 | 90.00 |
At d42 | 99.60 | 95.29 | 80.31 | 99.08 | 95.09 | 79.22 |
At d49 | 98.09 | 91.04 | 47.97 | 98.09 | 90.04 | 45.26 |
At d56 | 95.49 | 69.19 | 22.74 | 95.19 | 67.33 | 21.44 |
1,500 d1 + 1,500 d8 + 500 d36 | ||||||
At d42 | 100 | 100 | 99.43 | 100 | 100 | 99.46 |
At d49 | 100 | 99.47 | 93.36 | 100 | 99.51 | 92.79 |
At d56 | 99.67 | 96.34 | 77.32 | 99.74 | 96.09 | 75.93 |
1,500 d1 + 1,500 d8 + 1,000 d36 | ||||||
At d49 | 100 | 99.87 | 98.40 | 100 | 99.96 | 98.32 |
At d56 | 100 | 99.12 | 91.53 | 99.97 | 99.13 | 90.86 |
At d63 | 99.43 | 95.73 | 76.67 | 99.48 | 95.47 | 75.30 |
1,500 d1 + 1,500 d8 + 1,500 d36 | ||||||
At d56 | 100 | 100 | 98.00 | 100 | 100 | 97.97 |
At d63 | 100 | 99.68 | 96.25 | 100 | 99.75 | 95.97 |
At d70 | 99.17 | 93.43 | 61.1 | 99.19 | 92.93 | 58.93 |
CFR, cumulative fraction of response; MRSA, methicillin-resistant Staphylococcus aureus; MSSA, methicillin-susceptible Staphylococcus aureus; d, day. Numbers in bold identify desirable CFRs ≥90%.